FAN5607
LED driver with 93% peak efficiency and tight current matching in Ultra-Portable applications
Featuring three-mode charge pump and high peak efficiency, the internal circuitry of the FAN5607 not only saves space and simplifies design features, it also extends battery life and increases reliability with built-in over voltage protection, shutdown mode, soft-start and short-circuit protection in ultra-portable applications. Offering one of the smallest packages available, a 4x4 MLP, it is also an environmentally beneficial product that comes in lead free.
Features and Benefits
- Parallel LED driver supports all forward voltages
- Adaptive VOUT adjustment to the highest diode voltage
- Internally matched LED current sources
- Built-in charge pump has three modes of operation: 1X, 1.5X and 2X mode
- Up to 93% efficiency
- Low EMI, low ripple
- Up to 120mA output current (4 x 30mA)
- External resistor to set maximum (100%) LED current
- Enable input can be duty-cycle-modulated to control LED current level between 0 and 100%
- 2.7V to 5.5V input voltage range
- ICC < 1µA in shutdown mode
- 1MHz operating frequency
- Shutdown isolates output from input
- Soft-start limits inrush current
- Short circuit protection
- Minimal external components needed
- Available in a 4x4mm 16-lead MLP package
Applications
- Cell phone
- Handheld computers
- PDA, DSC, MP3 players
- Keyboard backlight
- LED displays
